Attentional blink paradigm.

<p>Faces of different categories of mammals were used as distracters while human faces were presented as targets. The first target (T1) was an inverted face (always a face of a stranger different from those used as T2) and the second target (T2) was an upright face that was either a personally familiar face or the face of a stranger. Stimuli were presented for 80 ms with no interval between stimuli.